Question on manual air conditioning

Question about manual air conditioning – fraudulent delusion? Hello, we bought a new used Focus 1.4 trend yesterday. Now I have a question about (manual) air conditioning, which he probably should have (according to seller). Lt. manual should have an A/C switch to turn on it. My model definitely does not have an AC switch (only the air switch is available) and it didn’t get really cool today (outside it had a good 25 to 29 °C) and inside the car it was good and like 30+ °C… Close to a Wiel we sometimes had the feeling that it got colder. So, maybe I didn’t quite understand the principle, but please explain how the manual climate works and how I operate it. Thank you!